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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 7. Отображено 7.
29-08-2023 дата публикации

Method for improving performance of friction nanometer generator

Номер: CN116655968A
Автор: YANG WEIXU, WANG JIEYANG, CHEN PING
Принадлежит:

The invention relates to a method for improving the performance of a friction nano generator, the method is realized by adopting polydimethylsiloxane (PDMS) films with different crosslinking ratios, the PDMS films are made of polydimethylsiloxane (PDMS) elastomers and curing agents, the crosslinking ratio of the polydimethylsiloxane PDMS elastomers to the curing agents changes in the range of 5: 1-25: 1, and the polydimethylsiloxane PDMS elastomers and the curing agents are made of polydimethylsiloxane polydimethylsiloxane polydimethylsiloxane polydimethylsiloxane polydimethylsiloxane polydimethylsiloxane polydimethylsiloxane polydimethylsiloxane polydimethylsiloxane polydimethylsiloxane polydimethylsiloxane polydimethylsiloxane polydimethylsiloxane polydimethylsiloxane polydimethylsiloxane polydimethylsiloxane. The generator comprises an upper substrate, a contact electrode, a textured PDMS film, a back electrode and a lower substrate, the upper substrate, the contact electrode, the textured ...

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Номер записи: 1
05-05-2010 дата публикации

Method for detecting content of reducing sugar in fermentation materials

Номер: CN0101701911A
Автор: HONGBO DENG, DONGMEI LI, CHUNJING LIU, ZHIFU LIU, SHUZHEN SUN, HONGBO TAN, BING WANG, YANFEI WANG, YAN XUE, WEIXU YANG, ZHANCHUN YU, XIAOXI ZHANG, WEI ZHENG, DENG HONGBO, LI DONGMEI, LIU CHUNJING, LIU ZHIFU, SUN SHUZHEN, TAN HONGBO, WANG BING, WANG YANFEI, XUE YAN, YANG WEIXU, YU ZHANCHUN, ZHANG XIAOXI, ZHENG WEI
Принадлежит:

The invention provides a method for detecting the content of reducing sugar in fermentation materials, which comprises the steps of: a) detecting a sample to be detected with a near infrared analyzer to obtain a near infrared spectrogram of the sample to be detected; and b) analyzing the near infrared spectrogram with the near infrared analyzer according to a preset calibration module to obtain the content of the reducing sugar in the fermentation materials. The method adopts a near infrared analyzing technology, combines the chemical metrology with a computer software technology, and builds the calibration modules to detect the content of the reducing sugar in the fermentation materials, does not need to previously process an analytic sample, does not consume the other materials when analyzing, does not break the sample, and reduces the consumption of the materials. The method can complete a sample analysis task within 2-3 minutes, which needs to be completed more than 1 hour with a normal ...

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Номер записи: 2
14-07-2023 дата публикации

Dual-frequency dual-circularly polarized transmission array antenna based on frequency reuse metasurface

Номер: CN116435790A
Автор: FENG YIJUN, YANG WEIXU, CHEN KE, ZHAO JUNMING, JIANG TIAN
Принадлежит:

The invention relates to a dual-frequency dual-circularly polarized transmission array antenna based on a frequency multiplexing metasurface, and the frequency multiplexing metasurface of the antenna integrates units which work at two different frequency bands and have different sizes on a radiation aperture surface through staggered arrangement, thereby achieving the dual-frequency working characteristic with high isolation. Each of the two basic function units comprises an upper metal layer forming a linear polarization microstrip antenna layer and a lower metal layer forming a circular polarization microstrip antenna layer; the basic function unit can independently regulate and control the phases of the left-hand circularly polarized wave and the right-hand circularly polarized wave in the transmission field by independently rotating the upper metal layer and the lower metal layer, and finally the decoupling function is achieved. According to the invention, the radiated left-hand circularly ...

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Номер записи: 3
05-05-2010 дата публикации

Method for detecting brix, volatile acid and alcohol degree of fermenting materials

Номер: CN0101701910A
Автор: HONGBO DENG, DONGMEI LI, CHUNJING LIU, ZHIFU LIU, SHUZHEN SUN, HONGBO TAN, BING WANG, YANFEI WANG, YAN XUE, WEIXU YANG, ZHANCHUN YU, XIAOXI ZHANG, WEI ZHENG, DENG HONGBO, LI DONGMEI, LIU CHUNJING, LIU ZHIFU, SUN SHUZHEN, TAN HONGBO, WANG BING, WANG YANFEI, XUE YAN, YANG WEIXU, YU ZHANCHUN, ZHANG XIAOXI, ZHENG WEI
Принадлежит:

The invention provides a method for detecting the brix, the volatile acid and the alcohol degree of fermenting materials, which comprises the steps of: a) detecting a sample to be detected with a near infrared analyzer to obtain a near infrared spectrogram of the sample to be detected; and b) analyzing the near infrared spectrogram with the near infrared analyzer according to a preset brix calibration module, a volatile acid calibration module and an alcohol degree calibration module to respectively obtain the brix, the volatile acid and the alcohol degree of the sample to be detected. The method adopts a near infrared analyzing technology, combines the chemical metrology with a computer software technology, and builds the calibration modules to be capable of detecting the brix, the volatile acid and the alcohol degree of the fermenting materials, completing a sample analysis task within a few minutes, which needs to be completed more than 2 hours with a normal chemical analysis method, ...

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Номер записи: 4
15-12-2010 дата публикации

Method for analyzing high moisture corn and freezing corn moisture using near infrared spectrum technology

Номер: CN0101055248B
Автор: YAN XUE, BING WANG, XIANYOU ZHANG, XIAOXI ZHANG, WEIXU YANG, WEI ZHENG, YANFEI WANG, DONGMEI LI, XUE YAN, WANG BING, ZHANG XIANYOU, ZHANG XIAOXI, YANG WEIXU, ZHENG WEI, WANG YANFEI, LI DONGMEI
Принадлежит:

The invention discloses a method of analyzing moisture for high-moisture corn and frozen corn by near infrared spectrum technique. The method conquers temperature limitation of near infrared spectrum detection, can measure sample which temperature is lower than room temperature by microwave heating treatment besides sample of room temperature. The invention mainly utilizes a near infrared analysis instrument, combines chemometrics method, employs diffuse reflection measuring method, uses certain representative corn as standard sample to establish scaling model, and predicts moisture content of unbeknown sample by the model. Advantages of the invention are nondestructive, easy operation, fast detection speed and higher measurement accuracy.

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Номер записи: 5
11-08-2023 дата публикации

Solar thermochemical hydrogen production and power generation system and method

Номер: CN116573609A
Автор: CHEN KANG, YANG WEIXU, JULIA, HAN FENGSHUANG, DANG ZHIMIN, XIAO BIN, PENG HUAIWU
Принадлежит:

The invention provides a solar thermochemical hydrogen production and power generation system and method. Relates to the technical field of fuel power generation. The system comprises a light condensation device used for focusing solar energy; the thermochemical reactor is used for receiving heat generated by the light condensing device through focusing solar energy and providing a closed space and a heat preservation environment for the reaction process; the oxygen carrier is used for carrying out reduction reaction and releasing oxygen by utilizing heat heating, and carrying out oxidation reaction with the water vapor introduced into the thermal chemical reactor to generate hydrogen; and the thermoelectric power generation component is arranged on the thermal insulation layer of the thermochemical reactor and is used for generating power by utilizing the temperature difference between the inner side and the outer side of the thermal insulation layer so as to recover heat dissipated through ...

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Номер записи: 6
07-07-2023 дата публикации

Total space direction multiplexing multifunctional electromagnetic metasurface and design method thereof

Номер: CN116404428A
Автор: CHEN KE, YANG WEIXU, FENG YIJUN, ZHAO JUNMING, JIANG TIAN
Принадлежит:

The invention relates to a full-space direction multiplexing multifunctional electromagnetic metasurface and a design method thereof. The electromagnetic metasurface is mainly formed by periodically extending two basic function units according to a staggered structure; each of the two basic function units is formed by stacking a left-hand circularly polarized microstrip antenna and a right-hand circularly polarized microstrip antenna in a back-to-back manner; the phase response of the transmission and reflection functions of the basic function units can be independently and randomly designed by rotating the left-hand circularly polarized microstrip antenna and the right-hand circularly polarized microstrip antenna of the basic function units; when the same electromagnetic wave is irradiated to the metasurface in the forward direction or the backward direction, the metasurface can be arranged according to four groups of phases which are designed in advance, and different transmission and ...

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Номер записи: 7